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Additional Pictures 

 

The TP0456 microcomputer based Master/Slave
architecture found in the TI-54 calculator.
The CD4551 forms the Master, the smaller 
CD4555 the Slave.

The TP0456 microcomputer based Master/Slave
architecture found in the TI-57 LCD calculator.
The CD4572 forms the Master, the smaller 
CD4555 the Slave.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, June 13, 2003. No reprints without written permission.